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Find the Center, Vertices, and Foci of the Ellipse Below x2+8y2=80x ^ { 2 } + 8 y ^ { 2 } = 80

Question 95

Multiple Choice

Find the center, vertices, and foci of the ellipse below.
x2+8y2=80x ^ { 2 } + 8 y ^ { 2 } = 80


A) Center: (0,0) ( 0,0 )
Vertices: (45,0) ,(45,0) ( 4 \sqrt { 5 } , 0 ) , ( - 4 \sqrt { 5 } , 0 )
Foci: (70,0) ,(70,0) ( \sqrt { 70 } , 0 ) , ( - \sqrt { 70 } , 0 )

B) Center: (0,0) ( 0,0 )
Vertices: (0,10) ,(0,10) ( 0,10 ) , ( 0 , - 10 )
Foci: (0,2411) ,(0,2411) ( 0,24 \sqrt { 11 } ) , ( 0 , - 24 \sqrt { 11 } )

C) Center: (80,10) ( 80,10 )
Vertices: (160,10) ,(160,10) ( 160,10 ) , ( - 160,10 )
Foci: (80+2411,10) ,(802411,10) ( 80 + 24 \sqrt { 11 } , 10 ) , ( 80 - 24 \sqrt { 11 } , 10 )

D) Center: (80,10) ( 80,10 )
Vertices: (80,20) ,(80,20) ( 80,20 ) , ( 80 , - 20 )
Foci: (80,10+2411) ,(80,102411) ( 80,10 + 24 \sqrt { 11 } ) , ( 80,10 - 24 \sqrt { 11 } )

E) Center: (0,0) ( 0,0 )
Vertices: (80,0) ,(80,0) ( 80,0 ) , ( - 80,0 )
Foci: (6336,0) ,(6336,0) ( 6336,0 ) , ( - 6336,0 )

Correct Answer:

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